Now the final fix is quasi ready. The latest SwiftKey Beta (v 6.4.1.45) adds back number, email, and other predictions containing the character @. However, all learned ones have been wiped so you'll have to start from a clean slate. The beta also adds Android Nougat's 74 new emojis as well as the skin tone modifiers for plenty of existing emojis (tap and hold on the ones with a small grey triangle beneath them to reveal the different variations).

Here's the official changelog followed by the link to the beta app on the Play Store. Hopefully, this fix and the emojis will make it to the stable release soon.

WHAT'S NEW

- Sync service fixed
- Number, email and other predictions containing '@' are turned back on. All previously learned number, email and @ predictions have been deleted but can now be relearned
- Android N emoji are now supported
- Diverse emoji now available. Long press select emoji to modify their skin tone